100204125 has 64 divisors (see below), whose sum is σ = 194088960. Its totient is φ = 44961600.

The previous prime is 100204073. The next prime is 100204163. The reversal of 100204125 is 521402001.

It is not a de Polignac number, because 100204125 - 2⁸ = 100203869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154552 + ... + 155198.

It is an arithmetic number, because the mean of its divisors is an integer number (3032640).

Almost surely, 2^100204125 is an apocalyptic number.

100204125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100204125 is a deficient number, since it is larger than the sum of its proper divisors (93884835).

100204125 is an equidigital number, since it uses as much as digits as its factorization.

100204125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 100204125 is about 10010.2010469321. The cubic root of 100204125 is about 464.4744901547.

Adding to 100204125 its reverse (521402001), we get a palindrome (621606126).

The spelling of 100204125 in words is "one hundred million, two hundred four thousand, one hundred twenty-five".